Oh sure it may keep you dry and warm, but the masses of hungry predators siting outside the front door licking the walls to death may be an inevitable problem. What am I rambling about you ask? Well it's simple good sirs! Blood bricks. Moreover, bricks consisting of cow's blood.
One architecturally savvy individual with a knack for finding uses for what is considered the largest waste product: Jack Munro Has found a way to take cow's blood, mix it with sand and a few things, and bake it at a low 160 degrees to create bricks! Yes, the bricks are apparently waterproof, and by all accounts, are completely up to code.